Hello! When you open the achievement window for the 25th anniversary mission, it tells you to go to "Katta Castrum" but the mob is actually in "Katta Castellum" Slight difference, but a world apart. Like the difference between Hampshire and New Hampshire
To make totally clear in case someone is not familiar with this: Ghrald McMannus is in Katta Castellum. Not Katta Castrum. Achievements (under Events > Anniversary): * 25th Anniversary Tasks * 25th Anniversary Mission * 25th Anniversary Raid